Rack structure for a utility vehicle



FIG. 1 is a front perspective view of a rack structure for a utility vehicle showing the unique design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is a top view thereof.

The claimed design for the rack structure for a utility vehicle is directed to the portions shown in FIGS. 1-4 and any portions not shown between break lines form no part of the claimed design. 

CLAIM I claim the ornamental design for a rack structure for a utility vehicle, as shown and described. 